Home / 319,217.82-440,442.27-210,310.08

Finding the Fourth Proportional to 319,217.82, 440,442.27 and 210,310.08

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Solution

The fourth proportional to 319,217.82, 440,442.27 and 210,310.08 is: 290,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,217.82 : 440,442.27 = 210,310.08 : x
  2. Step 2: Convert to fraction form
    319,217.82/440,442.27 = 210,310.08/x
  3. Step 3: Cross multiply
    319,217.82x = 440,442.27 × 210,310.08
  4. Step 4: Simplify right side
    319,217.82x = 92,629,448,034.67
  5. Step 5: Solve for x
    x = 92,629,448,034.67/319,217.82
  6. Step 6: Final answer
    x = 290,176.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.